TODAY 8a: Massive asteroid to fly past Earth today. Valerie Bertinelli on her new memoir. Rachel Brosnahan and Tony Shalhoub on “The Marvelous Mrs. Maisel” season four.

<p>A massive skyscraper-sized asteroid will fly past Earth today — how you can watch it live. Plus, Hoda Kotb chats with Valerie Bertinelli about her new memoir “Enough Already: Learning to Love the Way I Am Today.” And, Rachel Brosnahan and Tony Shalhoub are previewing season four of “The Marvelous Mrs. Maisel.”</p>